【作者】 施国标； 晏凯； 王帅； 乔鹏飞；

【Author】 Shi Guobiao;Yan Kai;Wang Shuai;Qiao Pengfei;School of Mechanical Engineering,Beijing Institute of Technology;

【机构】 北京理工大学机械与车辆学院；

【摘要】 围绕中重型商用车转向系统电动化需求,提出一种双电机驱动的新型商用车行星齿轮电动转向系统,通过行星齿轮传动解决中重型商用车载荷大、转向阻力大的难题,通过双电机构型解决24V电压体制下电机电流过大的难题。建立转向管柱模型、双电机模型、新型行星齿轮转向器模型、驾驶员模型、整车及转向阻力模型;根据转向系统和商用车特性确定了交叉耦合的双电机同步控制架构,制定了双电机全局快速终端滑模同步控制策略,仿真验证了双电机同步控制策略的有效性。更多还原

【Abstract】 A new type of commercial vehicle planetary gear electric steering system driven by dual motors is proposed to meet the demand for electrification of the steering system of medium and heavy commercial vehicles.The problem of high load and steering resistance in medium and heavy commercial vehicles is solved through planetary gears,and the problem of excessive motor current under 24V voltage system is solved through dual motor configuration.Establish steering column model,dual motor model,new planetary gear steering gear model,driver model,vehicle and steering resistance model;Based on the characteristics of the steering system and commercial vehicles,a cross coupled dual motor synchronous control architecture was determined,and a dual motor global fast terminal sliding mode synchronous control strategy was developed.The effectiveness of the dual motor synchronous control strategy was verified through simulation.更多还原